9/28 Write a program to swap the values of two variables

Question

Write a program to swap the values of two variables. The program will ask the user to input variables x and y with numerical values. You must write code that exchanges their values: the value of x after your code runs must equal the value that y had before your code ran, and the value of y after your code runs must equal the value that x had before your code ran.

寫一個交換兩個變數的程式

Example input:

3
5

Example output:

5
3

Remember: Your output may be 100% correct, but your code matters!

Comments

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Answer 1

Hidden content!
#include<stdio.h>

int main()
{
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}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 2

Hidden content!
#include <stdio.h>
int main()
{
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  * ***** ** *   ** *   *   ** 0;

}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 3

Hidden content!
#include<stdio.h>
int main(){
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return 0;}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 4

Hidden content!
#include<stdio.h>
int main()
{
int a,b;
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return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 5

Hidden content!
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*****  0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 6

Hidden content!
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int   * **
{
 * *   * *   **  a,b,swap;
*  *** * ***  **  * * *   *
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swap=a;
a=b;
b=swap;
  *** *   *  ***   * a);
* ** * **   *** * * 
   ** *** *  *  0 ;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 7

Hidden content!
 *  *     * * **** ** 
main()
{
* ***   *     *   *** 
 * *  * * *    * *  ***    
*     *  * ** *  **   * 
swap=a;
a=b;
b=swap;
* * *** * **   *   a);
* *    ***** ** ** ****
**  *****   ** 0 ;
}

Comments

prog.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~

Answer 8

Hidden content!
** *  * * * ** ** * 
 int main(){
int a,b;

*** * ***   *****    *****    ** *  ** *  *  ** *   *** *  *   ** * 

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return 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output

Answer 9

Hidden content!
 * * *** * *    
  ******  main(){
int a,b;

*  * **** ** * *** ** * ****** *    ** *  **       *   ***** * *  * * *** 

*******   *  * *  *   * * *   * *  **   *  ** *  *

return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output

Answer 10

Hidden content!
#include <stdio.h>

int main(){
******* * *     * *   ** ** 
    *** *  * *  **  * *** **  x,y,temp;
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* *  *  *   **   *  **   **** *   *** * ** **  * * x,y);
**   **** *** *  ***  ***   
 *** *  * * * *   **** * * *** ** 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output